Perhaps you should try some spelling variations:
thanh hoa » thanh pho
tay tang » tay lang, tay trung, tay quang
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
ky dang » ky nang, ky danh
va cam » va cham, va cac, va cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((tay tang) or (ky dang)) xa hoi. hieu va cam duc va thanh hoa ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tay tang) OR (ky dang)) xa hoi. hieu va cam duc va thanh hoa ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((tay tang) or (ky dang)) xa hoi. hieu va cam duc va thanh hoa ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu sach ((tay tang) or (ky dang)) xa hoi. hieu va cam duc va thanh hoa ((cua tre) OR (cuu tre))*.